Module 4: Deriving a Logical Data Design

Chia sẻ: Thuy Van | Ngày: | Loại File: PDF | Số trang:28

lượt xem

Module 4: Deriving a Logical Data Design

Mô tả tài liệu
  Download Vui lòng tải xuống để xem tài liệu đầy đủ

The logical data design is the middle stage of the natural progression from conceptual design to physical design. The process of deriving a logical data design from the conceptual data design accomplishes the following: Translates conceptual data needs into real data requirements. You must turn the conceptual data needs identified during conceptual design into actual entities and relationships that will define how the data interacts. Helps organize your thinking about the data. You must ensure that the data elements identified in the conceptual design stage accurately depict the desired data for the business solution. Focuses on the semantic details of the data relationships. You are forced to delve deeper into...

Chủ đề:

Nội dung Text: Module 4: Deriving a Logical Data Design

Đồng bộ tài khoản